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K3-transverter interface

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w7xu

K3-transverter interface

I would like to use my K3 as an IF radio for
some VHF+ transverters. I have transverters
for 8 bands, and it would be great if the set
up included automatic bandswitching of the
transverters, amps, PTT lines, etc. Is there
anything out there that can handle this?

I spend over 300 hours per month at work,
so I don't have time to learn how to program a
PIC, etc.

Thanks & 73,

Arliss W7XU

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N0AZZ

Re: K3-transverter interface

MicroHAM maybe to start with look at their web site. Off the top of my head
that is all I can think of.

73
Fred/N0AZZ

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of [hidden email]
Sent: Saturday, August 11, 2012 1:59 AM
To: [hidden email]
Subject: [Elecraft] K3-transverter interface

I would like to use my K3 as an IF radio for some VHF+ transverters. I have
transverters for 8 bands, and it would be great if the set up included
automatic bandswitching of the transverters, amps, PTT lines, etc. Is there
anything out there that can handle this?

I spend over 300 hours per month at work, so I don't have time to learn how
to program a PIC, etc.

Thanks & 73,

Arliss W7XU

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Joe Subich, W4TV-4

Re: K3-transverter interface

In reply to this post by w7xu

On 8/11/2012 2:59 AM, [hidden email] wrote:
> I would like to use my K3 as an IF radio for some VHF+ transverters.
> I have transverters for 8 bands, and it would be great if the set up
> included automatic bandswitching of the transverters, amps, PTT
> lines, etc. Is there anything out there that can handle this?

A Google search shows one commercial decoder:
http://www.kuhne-electronic.de/en/products/transverter/tr-6-sw.html
It looks like it might be usable with generic transverters.

There is also one home brew design that does not use PICs, etc.:
http://g4fre.com/k3vhf.pdf

In addition, band decoders from Elecraft (KRC-2 - using Aux bus) and
microHAM (Station Master - using CAT data) will decode the transverter
bands but will require additional relay switching to select IF (In/Out)
and route PTT to the respective transverters.

73,

... Joe, W4TV

On 8/11/2012 2:59 AM, [hidden email] wrote:

> I would like to use my K3 as an IF radio for
> some VHF+ transverters. I have transverters
> for 8 bands, and it would be great if the set
> up included automatic bandswitching of the
> transverters, amps, PTT lines, etc. Is there
> anything out there that can handle this?
>
> I spend over 300 hours per month at work,
> so I don't have time to learn how to program a
> PIC, etc.
>
> Thanks & 73,
>
> Arliss W7XU
>
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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Mark n2qt

Re: K3-transverter interface

A good start to home brewing this type of interface can be found at
http://www.unifiedmicro.com/decoder.html

Provides opto isolated binary decodes.

Mark n2qt

Sent from my iPad

On Aug 11, 2012, at 8:58 AM, "Joe Subich, W4TV" <[hidden email]> wrote:

>
> On 8/11/2012 2:59 AM, [hidden email] wrote:
>> I would like to use my K3 as an IF radio for some VHF+ transverters.
>> I have transverters for 8 bands, and it would be great if the set up
>> included automatic bandswitching of the transverters, amps, PTT
>> lines, etc. Is there anything out there that can handle this?
>
> A Google search shows one commercial decoder:
> http://www.kuhne-electronic.de/en/products/transverter/tr-6-sw.html
> It looks like it might be usable with generic transverters.
>
> There is also one home brew design that does not use PICs, etc.:
> http://g4fre.com/k3vhf.pdf
>
> In addition, band decoders from Elecraft (KRC-2 - using Aux bus) and
> microHAM (Station Master - using CAT data) will decode the transverter
> bands but will require additional relay switching to select IF (In/Out)
> and route PTT to the respective transverters.
>
> 73,
>
> ... Joe, W4TV
>
>
> On 8/11/2012 2:59 AM, [hidden email] wrote:
>> I would like to use my K3 as an IF radio for
>> some VHF+ transverters. I have transverters
>> for 8 bands, and it would be great if the set
>> up included automatic bandswitching of the
>> transverters, amps, PTT lines, etc. Is there
>> anything out there that can handle this?
>>
>> I spend over 300 hours per month at work,
>> so I don't have time to learn how to program a
>> PIC, etc.
>>
>> Thanks & 73,
>>
>> Arliss W7XU
>>
>>
>>
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

zeke7237

Re: K3-transverter interface

In reply to this post by w7xu

I'm surprised nobody has mentioned the KRC2 .. red-headed stepchild of
the Elecraft line ;)

I use a KRC2 with a K2 to switch 6 microwave bands in the Jitney ..
903 through 10G. The radio displays the correct frequency with the GHz
lopped off. I reprogrammed the KRC2 (no programming required, just run
a commandline utility) such that it turned on 2 source and 2 sink pins
per band, with another pair of source and sink which turns on for any
microwave band. The outputs of the KRC2 can do a few hundred
milliamps, but the total package power is probably limited to under an
amp (e.g. use drivers for stuff that uses more than a few 10s of mA).
I drive two 1P6T relays plus some logic and a bunch of DEMI relay
boards.

It's not out-of-the-box, but it's been very reliable .. you'll likely
need to be able to do simple "glue" circuitry, diode or gates,
drivers, etc to make a complete solution

de w1rt/john

On Sat, Aug 11, 2012 at 2:59 AM, <[hidden email]> wrote: